Đề thi chính thức vào 10 môn Toán Sở GD&ĐT Hà Nam...

A 1) $S = \left\{ {2;3} \right\}$

2) $\left( {x;y} \right) = \left( {7; - 2} \right)$.

B 1) $S = \left\{ {1;3} \right\}$

2) $\left( {x;y} \right) = \left( {7; - 2} \right)$.

C 1) $S = \left\{ {1;3} \right\}$

2) $\left( {x;y} \right) = \left( {7; - 3} \right)$.

D 1) $S = \left\{ {1;4} \right\}$

2) $\left( {x;y} \right) = \left( {6; - 2} \right)$.

A 1)$M\left( {4; - 8} \right)$ hoặc $M\left( { - 4; - 8} \right)$.

2) $m =  - \frac{{11}}{2}$.

B 1)$M\left( {4;  8} \right)$ hoặc $M\left( { - 4;  8} \right)$.

2) $m =  - \frac{{11}}{2}$.

C 1)$M\left( {4; 8} \right)$ hoặc $M\left( { - 4; 8} \right)$.

2) $m =  - \frac{{1}}{2}$.

D 1)$M\left( {-4; - 8} \right)$ hoặc $M\left( { - 4;  8} \right)$.

2) $m =  - \frac{{3}}{2}$.

A 1) $A=6$

2) $B=\frac{2}{{\sqrt x  + 1}}$ ; $x \in \left\{ {2;3;4;...;9} \right\}$

B 1) $A=7$

2) $B=\frac{3}{{\sqrt x  + 1}}$ ; $x \in \left\{ {2;3;4;...;9} \right\}$

C 1) $A=2$

2) $B=\frac{2}{{\sqrt x  + 1}}$ ; $x \in \left\{ {4;5;6;...;9} \right\}$

D 1) $A=6$

2) $B=\frac{3}{{\sqrt x  + 1}}$ ; $x \in \left\{ {1;2;3;...;9} \right\}$

A $\frac{7}{2}$

B $\frac{5}{2}$

C $\frac{3}{2}$

D $\frac{1}{2}$